Electronic calculator having the functions of telephone book, address book, calendar, schedule book and memo book



FIG. 1 is a front elevational view of an electronic calculator having the functions of telephone book, address book, calendar, schedule book and memo book showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a perspective view thereof. 

The ornamental design for an electronic calculator having the functions of telephone book, address book, calendar, schedule book and memo book, as shown. 